//
//  KKUserAccount.swift
//  KKWeibo
//
//  Created by kassia on 16/7/11.
//  Copyright © 2016年 kassia. All rights reserved.
//

import UIKit

class KKUserAccount: NSObject, NSCoding {
    
    //用户授权的唯一票据
    var access_token: String?
    //access_token的生命周期
    var expires_in: NSTimeInterval = 0 {
    
        didSet {
            
         //  access_token过期时间 = 当前时间+过期秒数
         expiresDate = NSDate().dateByAddingTimeInterval(expires_in)
            
        }
    }
    //过期时间
    var expiresDate: NSDate?
    
    //授权用户的uid
    var uid: Int64 = 0
    
    //用户名
    var name: String?
    
    //用户头像
    var avatar_large: String?
    
    init(dic: [String: AnyObject]) {
        
        super.init()
        
        setValuesForKeysWithDictionary(dic)
    }
    
    
    
    //防止字段不匹配造成的崩溃
    override func setValue(value: AnyObject?, forUndefinedKey key: String) {
        
    }
    
    //  重写description这个属性
    override var description: String {
        let keys = ["access_token", "expires_in", "uid", "name", "avatar_large"]
        return dictionaryWithValuesForKeys(keys).description
  
    }
    
    
    /**
     归档
     
     */
    func encodeWithCoder(aCoder: NSCoder) {
        aCoder.encodeObject(access_token, forKey: "access_token")
        aCoder.encodeObject(expiresDate, forKey: "expiresDate")
        aCoder.encodeInt64(uid, forKey: "uid")
        aCoder.encodeObject(name, forKey: "name")
        aCoder.encodeObject(avatar_large, forKey: "avatar_large")

    }
    /**
     ,解档
     */
    required init?(coder aDecoder: NSCoder) {
        
        access_token = aDecoder.decodeObjectForKey("access_token") as?String
        expiresDate = aDecoder.decodeObjectForKey("expiresDate") as? NSDate
        uid = aDecoder.decodeInt64ForKey("uid")
        name = aDecoder.decodeObjectForKey("name") as? String
        avatar_large = aDecoder.decodeObjectForKey("avatar_large") as? String
    }
     
    //保存用户数据
    func saveUserAccount() -> Bool{
    
        let path = (NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).last! as NSString) .stringByAppendingPathComponent("userAccount.archive")
        
        let result = NSKeyedArchiver.archiveRootObject(self, toFile: path)
        
        return result
    
    }
    
    //读取用户数据
    class func readUserAccount() -> KKUserAccount? {
    
    let path = (NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).last! as NSString) .stringByAppendingPathComponent("userAccount.archive")
        
        return NSKeyedUnarchiver.unarchiveObjectWithFile(path) as?KKUserAccount
    }
    
}
